Objective To observe the correlation between CD64 index levels in peripheral blood and the severity and prognosis factors of postoperative traumatic sepsis,and investigate the clinical effect of these changes in the development of postoperative traumatic sepsis.Methods A total of 560 patients with trauma were enrolled in the study,and these patients were divided into the postoperative traumatic sepsis group (210 cases) and the postoperative general trauma group (350 cases) according to clinical manifestations.According to the severity of the postoperative traumatic sepsis,these patients were divided into low-risk group (64 cases),moderate-risk group (75 cases) and high-risk group (71 cases).According to clinical prognosis,these patients with post-traumatic sepsis were divided into survival group (178 cases) and death group (32 cases).The CD64 index in peripheral blood and APACHE Ⅱ score were analyzed and measured by flow cytometry.The differences and correlation between CD64 index levels and APACHE Ⅱ score were compared and analyzed,and the relationship between CD64 index levels and the severity and prognosis of postoperative traumatic sepsis were also assessed.Results The CD64 index levels of postoperative traumatic sepsis group were higher than the postoperative general trauma group (P<0.05).The differences in terms of CD64 index,APACHE Ⅱ score and mortality rate among low-risk group,moderate-risk group and high-risk group were statistically significant,in which high-risk group was the highest,followed by moderate-risk group,and low-risk group was the lowest(P<0.05).Compared with the survival group,the death group had higher CD64 index levels and APACHE Ⅱ score (P<0.05).The CD64 index levels were positive correlated with APACHE Ⅱ score (r=0.72,P=0.00) and mortality (r=0.56,P=0.00).ROC curves analysis results showed that the area under curve of CD64 index was 0.874 (95%CI:0.765~0.896), and the optimal operating point was 7.08,which had 82.6% sensiticity and 86.4% specificity.Conclusion The increased CD64 index levels in postoperative traumatic sepsis are closely related to the severity and prognosis of disease,and the CD64 index levels can be effective predictor with some clinical application value.

Objective To explore the indication of implant prosthesis immediately after removing polyacrylamide hydrogel for augmentation mammaplasty. Methods MRI and pathologic examinations were made in 226 patients with the postoperative complications of augmentation mammaplasty by injecting polyacrylamide hydrogel and with the specific conditions in operation to analyze the possibility of implant prosthesis while removing polyacrylamide hydrogel. Based on MRI examination, physical examination and specific conditions in operation, we chosen 61 cases who requested for implant prosthesis while removing polyacrylamide hydrogel. Results The patients who did the operation for simply removing polyacrylamide hydrogel recovered well and symptoms such as pain, sclerosis, mass and others disappeared almostly; the patients who did implanting at the same time were satisfied with the breast shape and had no side-effect occured. Conclusion With MRI examination, physical examination and specific conditions in operation, it can achive good effects to do implanting immediately after removing polyacrylamide hydrogel for those suitable and willing to implant prosthesis.

OBJECTIVE:To study the liver damage mechanism in mice caused by the incompatibility of Daphne genkwa com-bined with Glycyrrhiza uralensis in aspect of liver transporter. METHODS:40 mice were equally randomized into a normal control (isometric normal saline)group,a group of G. uralensis [15 g(medicinal matierias)/kg],a group of D. genkwa [15 g(medicinal tatierias)/kg],a group of D. genkwa with G. uralensis in the ratio of 1∶1 [15 g(crude drug)/kg],a group of D. genkwa with G. uralensis in the ratio of 1∶3 [15 g(medicinal matierias)/kg](n=8). The mice were given the corresponding drug,ig,once a day for 7 consecutive days. HE staining was performed and then the pathomorphology of liver tissues were observed under the light mi-croscope,and calculation was made for pathological grading. Western blot method was employed to determine the protein expre-ssion of the transporter Ntcp protein in the livers of mice. The contents of total bile acids(TBA)in livers of mice were determined. RESULTS:Compared to the mice in the normal control group,those in the group of 1∶1 and 1∶3 demonstrated higher protein ex-pression of Ntcp. In the group of 1∶1,the mice with grade“+++”hepatocyte degeneration were more (8). The mice with grade“+++”and“++”hepatocyte degeneration in the groups of 1∶3 were more (2 and 8 respectively). CONCLUSIONS:D. genkwa combined with G. uralensis can induce liver damage in mice by a mechanism which may be related to the accumulation of a large amount of TBA in the liver as a result of the increase in the expression of Ntcp in mice.

Objective:To study the correlation between C-myc express io n and clinicopathological characteristics of oromaxillofacial sarcoma. M ethods:C-myc expression was determined by SP method in 37 cases of sarc oma and 14 benign mesenchymal tumors in oral and maxillofacial region. R esults:C-myc expression was detectd in 22 cases (40.54%) of sarcoma and in none of the benign tumor. In sarcoma of gradeⅠ, Ⅱand Ⅲ, the positive r ates of C-myc expression were 16.70%, 30% and 66.67% respectively, and a statis tical significance was only observed in C-myc expression between gradeⅠand Ⅲ( P

Objective To study the changes and the significance of the frangible lymphocyte in patients with fulminant viral hepatitis and investigate the relationship between the degree of frangible lymphocyte and the severe of fulminant viral hepatitis. Methods 32 cases confirmed with fulminant viral hepatitis, 66 cases with chronic hepatitis have been studied. 15 cases children from 3 to 5 years old and 46 cases adults have been used with control groups. 100?l lymphocytes (1?106/ml) and 100?l tumor cells(1?105/ml) mixed with 100?l self-serum at 37℃ for 5min to 30min. The fragmental lymphocyte can defined as a frangible lymphocyte. The lymphocyte attached with tumor cell is undestroyed anything can be regarded as negative frangible lymphocyte. Less than 30 percent of lymphocyte attached with tumor cells is destroyed will be conformed as low-grade frangible lymphocyte, between 30 percent to 60 percent regard as mid-grade, and more than 60 percent as severe-grade mode. Results The equiform frangible lymphocyte is detected in fulminant viral hepatitis and other groups like that in SARS in 2003 years. There is none of children have frangible lymphocyte. Only 3 person’s lymphocytes show severe-grade frangible and 9 people display mid-grade in 46 adult individuals. Contrarily There is high of 46.9 percent of cases with fulminant viral hepatitis show severe-grade frangible lymphocytes, only 4 cases is negative and 3 cases is recovered in one months of them. The frangible lymphocytes in fulminant viral hepatitis are significantly lower than those in chronic hepatitis patients not only in mid-grade frangible but in severe type. There is no significant recovery of frangible lymphocyte from acute to recover in fulminant viral hepatitis, but the degree of the lymphocytes are closely relate to the state of an illness. Conclusion The percent of frangible lymphocytes in children is lowest among adult people, chronic hepatitis and fulminant viral hepatitis. The proportion of frangible lymphocytes in fulminant viral hepatitis is highest, and significantly higher than that in chronic hepatitis. The phenomenon of frangible lymphocytes may be an important characteristic of an innate immunology reaction of the body.

The impulsive electroencephalograph (EEG) noises in evoked potential (EP) signals is very strong, usually with a heavy tail and infinite variance characteristics like the acceleration noise impact, hypoxia and etc., as shown in other special tests. The noises can be described by a stable distribution model. In this paper, Wigner-Ville distribution (WVD) and pseudo Wigner-Ville distribution (PWVD) time-frequency distribution based on the fractional lower order moment are presented to be improved. We got fractional lower order WVD (FLO-WVD) and fractional lower order PWVD (FLO-PWVD) time-frequency distribution which could be suitable for a stable distribution process. We also proposed the fractional lower order spatial time-frequency distribution matrix (FLO-STFM) concept. Therefore, combining with time-frequency underdetermined blind source separation (TF-UBSS), we proposed a new fractional lower order spatial time-frequency underdetermined blind source separation (FLO-TF-UBSS) which can work in a stable distribution environment. We used the FLO-TF-UBSS algorithm to extract EPs. Simulations showed that the proposed method could effectively extract EPs in EEG noises, and the separated EPs and EEG signals based on FLO-TF-UBSS were almost the same as the original signal, but blind separation based on TF-UBSS had certain deviation. The correlation coefficient of the FLO-TF-UBSS algorithm was higher than the TF-UBSS algorithm when generalized signal-to-noise ratio (GSNR) changed from 10 dB to 30 dB and a varied from 1. 06 to 1. 94, and was approximately e- qual to 1. Hence, the proposed FLO-TF-UBSS method might be better than the TF-UBSS algorithm based on second order for extracting EP signal under an EEG noise environment.
Algorithms ; Electroencephalography ; Evoked Potentials ; Humans ; Models, Theoretical ; Signal Processing, Computer-Assisted

Objective To discuss the techniques and indications of retroperitoneal laparoscopic nephrectomy. Methods Retroperitoneal laparoscopic nephrectomy was carried out in 21 cases from March to December in 2003, including 12 cases of renal calculus associated with severe hydronephrosis, 1 case of renal tuberculosis, 6 cases of renal carcinoma and 2 cases of renal pelvis carcinoma . Results All the operations were successfully completed and no serious complications were observed. The operation time was 2 hours ～ 3 5 hours (mean, 3 hours) and the blood loss was 10 ml ～ 300 ml (mean, 178 ml). Follow-up for 1 months ～ 9 months in 8 cases of renal carcinoma showed no recurrence or metastasis. Conclusions Retroperitoneal laparoscopic nephrectomy has advantages of minimal invasion, short hospital stay and rapid recovery, indicated for many kinds of benign or malignant renal diseases .

OBJECTIVE To quantify the HBV DNA in saliva of chronic hepatitis B(CHB) patients and to study its relation to the periodontal status of the patients. METHODS HBV DNA were isolated from 60 patients with CHB by Trizol-chloroform method.HBV DNA levels were tested by real-time PCR technique and their relationship with plaque index,gingival index and probing depth was analyzed. RESULTS The positive rate of HBV DNA was (56.7%,) and the level of HBV DNA was 4.16+0.57(LogE,copies/ml) in saliva.The detectability of HBV DNA in saliva had no significant correlation with the values of oral clinical parameters. CONCLUSIONS The detectability and level of HBV DNA in saliva have no correlation with the oral hygienic parameters.Other sources of the HBV DNA may exist besides the serum in saliva.

Objective:To explore the relationship between college students' online game addiction tendency and learning burnout,and find the differences between online game addicts and other types of addicts.Method:With the Learning Burnout Scale,revised Chinese Internet Addiction Scale's Revision,Questionnaire of Internet Addiction Tendency,and 420 college Students as the subjects,analysis of correlation and stepwise regression analysis were employed to analyze the related factors of learning burnout.Result:There were significant difference in the gender(?2=21.855,P

Objective To introduce the different therapeutic methods for the different types of traumatic pseudoaneurysms. Methods Traumatic pseudoaneurysm was treated in 8 patients. Intraarterial embolization was performed with gelfoam in 3 patients for terminal type. Endovascular covered stent graft was inserted in 2 patients with trunk type. One patient with branch type, we used metallic coils to embolize both broken ends. One patient with perforation in femoral artery was treated with compression. For 1 patient with huge haematoma and pseudoaneurysm, operation for elimination the haematoma was performed after embolization. Results Pseudo- aneurysm kept closed after treatment achieved in all 8 patients. Distal arterial pulse was normal in 2 patients treated with stent graft. A new pseudoaneurysm presented as a complication at puncture site in 1 patient due to other factors. There were no other symptomatic complications. Conclusions Pseudo- aneurysms can be treated effectively with interventional techniques instead of surgical operation.